/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#ifndef HSDATABASE_H

#define HSDATABASE_H

#include <QObject>

#include <QVariantHash>

#include "hsdomainmodel_global.h"

#include "hstest_global.h"

HOMESCREEN_TEST_CLASS(TestHsDomainModel)

class HsSceneData;

class HsPageData;

class HsWidgetData;

class HsWidgetPresentationData;

class HSDOMAINMODEL_EXPORT HsDatabase : public QObject

{

    Q_OBJECT

    Q_PROPERTY(QString connectionName READ connectionName WRITE setConnectionName)

    Q_PROPERTY(QString databaseName READ databaseName WRITE setDatabaseName)

public:

    HsDatabase(QObject *parent = 0);

    ~HsDatabase();

    void setConnectionName(const QString &name);

    QString connectionName() const;    

    void setDatabaseName(const QString &name);

    QString databaseName() const;

    bool open();

    void close();

    bool transaction();

    bool rollback();

    bool commit();

    bool scene(HsSceneData &data);

    bool pages(QList<HsPageData> &data);

    bool page(HsPageData &data);

    bool insertPage(HsPageData &data);

    bool updatePage(const HsPageData &data);

    bool deletePage(int id);

    bool widgets(int pageId, QList<HsWidgetData> &data);

    bool widgets(const QString &uri, QList<HsWidgetData> &data);

    bool widgets(const QString &uri, const QVariantHash &preferences, int &count);

    bool widget(HsWidgetData &data);

    bool insertWidget(HsWidgetData &data);

    bool updateWidget(const HsWidgetData &data);

    bool deleteWidget(int id);

    bool deleteWidgets(const QString &uri);

    bool widgetPresentation(HsWidgetPresentationData &data);

    bool setWidgetPresentation(const HsWidgetPresentationData &data);

    bool deleteWidgetPresentation(int widgetId, Qt::Orientation orientation);

    bool widgetPreferences(int widgetId, QVariantHash &data);

    bool widgetPreference(int widgetId, const QString &key, QVariant &value);

    bool setWidgetPreferences(int widgetId, const QVariantHash &data);

    bool configuration(QVariantHash &configuration);

    bool updateWidgetZValues(const QHash<int, qreal> &data, Qt::Orientation orientation);

public:

    static void setInstance(HsDatabase *instance);

    static HsDatabase *instance();

    static HsDatabase *takeInstance();

private:    

    Q_DISABLE_COPY(HsDatabase)

    bool checkConnection() const;

    bool matchWidgetPreferences(const QVariantHash &preferences, const QMultiMap<QString, QString>& storedPreferences);

private:

    QString mConnectionName;

    QString mDatabaseName;

    static HsDatabase *mInstance;

    HOMESCREEN_TEST_FRIEND_CLASS(TestHsDomainModel)

};

#endif // HSDATABASE_H